There are quite a few options. Do you have a preference for departure or arrival time?
Yes, I want to depart from Cambridge any time after 8:30.
attraction-type train-day train-departure train-destination train-leaveat
attraction-type train-day train-departure train-destination train-leaveat
attraction-name attraction-type train-day train-departure train-destination train-leaveat
attraction-type train-day train-departure train-destination train-leaveat